package com.itheima.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.itheima.common.BaseContext;
import com.itheima.common.R;
import com.itheima.common.UsersException;
import com.itheima.domain.User;
import com.itheima.service.UserService;
import com.itheima.utils.ValidateCodeUtils;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@RequestMapping("/user")
@Slf4j
@Api(tags = "用户相关接口")
public class UserController {

    @Autowired
    private UserService userService;

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 发送手机短信验证码
     *
     * @param user
     * @param session
     * @return
     */
    @ApiOperation(value = "发送验证码")
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session) {
        //获取手机号
        String phone = user.getPhone();
        if (StringUtils.isNotEmpty(phone)) {
            //生成随机的4位验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("验证码={}", code);

            //调用阿里云提供的短信服务API完成发送短信
            //SMSUtils.sendMessage("瑞吉外卖","",phone,code);

            //需要将生成的验证码保存到Session
            //session.setAttribute(phone, code);
            //需要将生成的验证码保存到Redis,设置过期时间
            redisTemplate.opsForValue().set(phone, code, 5, TimeUnit.MINUTES);

            if (true) throw new UsersException(code);
            return R.success("手机验证码短信发送成功");
        }

        return R.error("短信发送失败");
    }

    /**
     * 移动端用户登录
     *
     * @param map
     * @param session
     * @return
     */
    @ApiOperation(value = "移动端用户登录")
    @ApiImplicitParam(name = "map", value = "验证信息", readOnly = true)
    @PostMapping("login")
    public R<User> login(@RequestBody Map map, HttpSession session) {
        log.info(map.toString());
        //获取手机号
        String phone = map.get("phone").toString();
        //获取验证码
        String code = map.get("code").toString();
        //从session中获取保存的验证码
//        Object attribute = session.getAttribute(phone);
        //从Redis中获取缓存的验证码
        Object codeInSession = redisTemplate.opsForValue().get(phone);
        //进行验证码的比对（页面提交的验证码和session中保存的验证码比对）
        if (codeInSession != null && codeInSession.equals(code)) {
            //比对成功 说明登录成功
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone, phone);
            User user = userService.getOne(queryWrapper);
            if (user == null) {
                //判断当前手机号对应的用户是否为新用户，如果是新用户就自动完成注册
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            //如果用户登录成功，从Redis中删除缓存的验证码
            redisTemplate.delete(phone);
            session.setAttribute("user", user.getId());
            return R.success(user);
        }
        return R.error("登录失败");
    }

    /**
     * 移动端用户退出
     *
     * @return
     */
    @ApiOperation(value = "用户退出")
    @PostMapping("/loginout")
    public R<String> loginout(HttpSession session) {

        session.removeAttribute("user");
        return R.success("退出成功");
    }

    /**
     * 根据id查询数据
     *
     * @return
     */
    @ApiOperation(value = "根据id查询用户")
    @GetMapping
    public R<User> getById() {
        User user = userService.getById(BaseContext.getCurrentId());
        log.info("查询到的用户信息为:{}", user);
        return R.success(user);
    }

    @ApiOperation(value = "修改用户信息")
    @PutMapping
    public R<String> update(@RequestBody User user) {
        log.info("完善后的用户信息为:{}", user);
        userService.updateById(user);
        return R.success("信息已完善");
    }
}
